Answer:
Leslie White
Explanation:
Leslie White, an American anthropologist is known for his theories on the evolution of the culture by humans like sociocultural evolution, the theory of cultural evolution and others.
The person tried to identify the important factor related to the establishment of the primitive society and found that the cultures evolved from simple to complex as they developed the clothing and the tools and as a result provided the meaning to the symbols, the art and the most common mode of communication called language.
Thus, Leslie White is the correct answer.
